I know the answer now. With many thanks to the original source David Perell:

End meetings with five minutes of silent writing time.

Answer the following questions:

• What are my top takeaways?
• What are the next steps?
• What questions do I still have?

Resist the urge to jump to the next activity.

I am guilty of finishing a meeting, promising to get something done and trusting that I’ll remember it. I often forget. So my new thing is that before I leave any meeting room, the details of what I need to do will either be in a message to a delegate, or in my To Do app.